Sole



5 improved and novel form of shoe,

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CHARLES B. SP'LSBURY, 0l? ST. LOUIS, MSSOURI, ASSIGNOR T0 JQVHNSON, STEPHENS a sumaria suon sonar..

COMPANY, F 'S'li LOUIS, MSSOTRI, AGORPORATON @E MKS SOLE.

My present invention is a novel and improved form of sole; or a combined insole and outsole for use in manufacturing shoes, particularly intended for 'use'in' making my method or process disclosed in my copending application Ser. No. 555,588, tiled April 19, 1922. lin carrying out lthe said process, it is important to provide an insole and out sole member, so :formed and constructed; or so united when two separate layers or sole members are employed, that the upper materials may b e lasted upon the insole member entirely around the edge, and then through and through stitching employed, engaglng the marginal portions of both insole and outsole members,y and fthe upper therebetween, in the well-known manner of McKay stitching.

ln order to` eect such a 'lasting action, particularly on the edge portions of the upper at each side of the forepart, l have delvised a special lasting machine shown in my copending application Ser. No. 630,131, filed April 5, 1923, although any lasting instrumentalities may be used for the purpose :and the shoe may beso made by hand.

lin my present. application l have elected to describe and claim the sole or combined insole and outsole members, either for making my improved shoe, orv in the manufacture of the wellknown and established type of McKay shoe. l am advised that the cutting of a sole into insole and outsole members, wherein the line of cutis/at different levels or positions in the forepart .and in the shank part, is new, land also it is new, so far as l am aware, to unite an ordinary insole and outsole intended for use in making Mc-v Kay sho'es', prior tothe lasting, irrespective of the relative kindsl of sole constructions are capable of use advantageously in my improved shoe, by

the process described in my said prior'application, Ser. No. 555,588, filed April 19, 1922, I wish to claim the same herein broadly. fr

Referring to the drawings, illustrating a preferred embodiment of the invention Fi 1 is a plan view of 'my novel form of so e constituting anv'insole and outsole member, cut or split from a single thickness, and also this {igre illustrates two separate soles united at the'orepart, to form a single by thethicknesses and as both these sole member preparing the same for lastmu fig. 2 is a side view of the sole as incorporated in the shoe;

Fig. 3 is a cross-sectional view on the line 3 3 of llig. 1;

Fig. 4 is a cross-sectional view on the line 1 -L1 of Fig. 1, wherein the insole andv outsole members are split from a single thickness of leather; and

Fig. 5 is a cross-sectional view on the line i--4of 1, illustrating a modie'd construction w erein separate insole .and outsole layers are united.

As herein illustrated and as explained in said prior process application, vlzprepare a special sole for the purpose of making 'j improved shoe by my new process. Such a.

sole will rst bedescribed as made from a.

single layer or piece o leather. This sole y leather is died out to suitable form and contour, as is customary. lt is then split in wardly Jfrom the heel to approximately the forepart, preferably on a line of cleavage which will leave the greatest thickness for the insole member. The sole is then split. inwardly from the toe portion and around the sides., on a line which will leave the greatest .thickness on the -outsole member. With the sole thus formed,'the outsole member 1 and insole member 2 are se arate at heel and shank at toe and aroun the side portions, being united only at ,the central part of the forepart or ligature 3.

The insole member 2 is reduced in dimensions by being trimmed, formed or vcut of appropriately less area and contour than the outsole. As illustrated in Fig. 2 the shoe upper 5 is lasted as shown between the insole and outsole members and the shank stiiener 6 also preferably positioned therebetween. Y

' When it `is desired to make this type of combined or double insole and outsole, with two separatelyt formed layers orf two soles l' `and then two members are applied together and united by lines of stitching 10 and 11, at the Orepart,

and outsole members to permit the lasting of the upper 5 at these points. I contemleavingl a substantialmar, -ginal area at each side between the insole ate the use of the insole for ordinary cKay shoe manufacture, although I may use either form of insole in manufacturing an improved shoe by the novel process of my said prior and co ending application. Where the sole is ma e of a plurality of separate and distinct members the two sole members may be of equal` thickness throughout or may be of proportionately varying thickness to correspond substantially with the different lines of splitting or cut as shown in Fig. 2.

In either form I provide a combined insole and outsole member, preparatory to incorporating the same in a shoe by lasting the upper between the two joined or split portions, and completin the shoe b through and4 through or cKay stitching. This feature of making a McKay shoe by first uniting the insole and outsole members, I

claim as new, and also the formation of au insole from a single layer or sheet of matcrial wherein the insole and outsole members ars so split or cut as to provide a greater thickness of the outsole at the forepart and ofliile insole at the shank and heel part. and ydefined in the form of claim as follows A combined insole and outsole member idr McKay shoes, comprising a sole having an insole member and an outsole member so split or cut as to have the /forepart of the outsole member of substantially greater thickness than the rear part, said members being united at the forepart only and adapted for havin an upper lasted directly to the insole mem er without turning.

In testimony whereof, I have signed my name to this specification.

CHAS. B. SPALSBURY.

present invention is further described 

